fix: fallback to json_object when json_schema response_format is unsupported#1345

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mjnovice wants to merge 3 commits intomainfrom

fix/eval-llm-json-schema-fallback

Commits on Feb 19, 2026

fix: fallback to json_object when json_schema response_format is unsupported

mjnovice
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claude
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fix: narrow exception handling in json_schema fallback to HTTP errors only

mjnovice
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claude
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Commits on Feb 20, 2026

fix: narrow json_schema fallback to 400/422 status codes and re-raise other errors

mjnovice
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claude
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